Alexei Leonov, the first person to walk in space, has died, Russian space agency Roscosmos announced Friday. He was 85. His assistant, Natalya Filimonova, told Russian state-run news agency Tass that he died after a long illness at Burdenko Hospital. "Roscosmos State Corporation management and employees express deep condolences to the friends and relatives of Alexey Leonov. A telegram with condolences was sent to the friends and relatives on behalf ...